From: Asahi Lina <lina@asahilina.net>
Date: Wed, 3 May 2023 06:40:33 +0000 (+0900)
Subject: asahi: Assert that freed BOs have no pending writers
X-Git-Tag: upstream/23.3.3~9034
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3f55eff0e5df17dd4d9328236988932d360ac00c;p=platform%2Fupstream%2Fmesa.git

asahi: Assert that freed BOs have no pending writers

This is just a sanity check, I haven't actually hit this case but if we
ever do something is very broken (e.g. BO refcounting bug).

Signed-off-by: Asahi Lina <lina@asahilina.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22891>
---

diff --git a/src/asahi/lib/agx_bo.c b/src/asahi/lib/agx_bo.c
index a58c2a2..3e9e608 100644
--- a/src/asahi/lib/agx_bo.c
+++ b/src/asahi/lib/agx_bo.c
@@ -193,6 +193,8 @@ agx_bo_unreference(struct agx_bo *bo)
     * lock, let's make sure it's still not referenced before freeing it.
     */
    if (p_atomic_read(&bo->refcnt) == 0) {
+      assert(!bo->writer_syncobj);
+
       if (dev->debug & AGX_DBG_TRACE)
          agxdecode_track_free(bo);